eawoeth



3 Sheets Sheet 8,

(No Model.)

2 .i v 332,832' y upwardby a. spring can be used to pnt the volt-meterin circuit by pressing down .this key by the nger, a,nd 'therebybringing into Contact two metallic springs, n n, by. which the circuitof the instrument isvelosed.

No claim is 'nm-de vto features disclosed in this application which areclaimed in the application No. 157,07 7, filed February 25, 1885.

'Having thus described the nature of my in-v vention and the best meansI know forcarrying it outin practice, I claini- The combination of thespindle A, having two small arms, a a, projecting from it in op positedirections, conducting-coils B, consisting of numerous convolntions offine insndated wire arranged around the spindle, the rectzmi gula-rcasing E, having n number of convolutionsof insulated wire, C' C Cs C,Wound around it, the index-wire F, counterbalanced. by an adjustableweight, F', und projecting 2o through the dial G, .the central spindle,H, passing through the dial, and the volute spring K, connected by thearm k to the index-wire,

as and for the purpose described.

In testimony whereof I have signed my' name to this specification, inthe presence 0f tw'osubscribing witnesses, this 13th day of A ugust, A.D. 1885. v

JOHN SMITH RAWORTH.

l "Witnesses: Crus. M. Domus, v

31 Ackers St.,- .ManchesterI JOHN WM. MACLEAN., v

' 50 Bishop St., Manchester.

